Mac Identification

Ax-man · Jan 9, 2005

Tpac,

I think the Mac guys threw a curve ball into this thread, I think they are talking Kart engines and were talking about saw carbs. The picture you posted of your carb is just a little different than mine. I really don't feel like taking mine back off to compare it up close, that is why I asked the question on how many different Mac carbs there are.

Larry

TPAC · Jan 9, 2005

The Ax-man cometh

Hey Ax-man,
That thought never crossed my mind, but I am glad it crossed yours. I supposed it would help if we were all on the same page.

At any rate, I just want to make me saw run :laugh:

and I am pretty sure what part I need. I just need to know the proper name for the part and if it's even remotely possible that I will find what I need. I have learned a great deal in the two days I have been here and I appreciate everyone's input. Y'all have a good night and a good week,

TPAC

ozflea · Jan 10, 2005

The tank vent is normally in the centre of the filler cap, but it could be a small drilling under the edge of the cap.
The cap vent should be splinted (?) bronze if its inthe centre of the fuel cap.

ozflea · Jan 10, 2005

Gday TPAC

Mate these rubber check valves won't be available till early Febuary as my order is amongst the first so if you would care to email a little later on in Feb i may have a spare or two.

Bob Cornwell.........Australia

ozflea · Jan 10, 2005

Saw and Kart engines have a lot in common as they used the same basic engine configeration the pic of you carby is like half a BDC kart carby and they would no doubt use the same diaphram and metering plate with flapper valves, i have added a small pic of the valve in question hoping this helps.

Bob

Al Smith · Jan 10, 2005

If you look on Mike Acres site,in the carb. section,Walbro,model mac,is similar to the primer type.It may in fact be,minus the primer.

heviarti · Jan 10, 2005

you know.. there are about twenty different carbs that look like that.. bdc-1 though bdc-21 if i remember.. i's sure like to know what the story is with these carbs.. and where i get some diaphragms. I have about four of these... in various versions.